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Digital Computer Electronics

Digital Computer Electronics
The reduced form of the Boolean expression (A+B)(A+C) is:

A+BC
AC+B
A+B+C
AB+AC
None of these

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Digital Computer Electronics
The main advantage of hexadecimal numbers is the case of conversion from hexadecimal to _____ and vice versa.

None of these
binary
ASCE
BCD
decimal

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Digital Computer Electronics
The EXCLUSIVE - NOR gate is equivalent to an _____ gate followed by an invertor.

AND
NAND
XOR
OR
None of these

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Digital Computer Electronics
In which code the successive code characters differ in only one bit position?

8421 code
gray code
None of these
algebraic code
excess 3 code

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Digital Computer Electronics
The octal equivalent of decimal 324.987 is

640.781
504.771
90.987
None of these
815.234

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Digital Computer Electronics
The ASCII code is a 7-bit code for

None of these
All of these
letters
numbers
other symbols

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